If someone called me a hipster I would be offended too.  As for the look, I think it is regional.  The hipsters I've seen in Colorado are sporting a man bun and sucking on their ---meecrob--- flutes while wearing flannel and talking about how progressive smoking pot is.  Around here, the look is different, what Howard is describing would fit the lesbian/gender neutral females around here.  
You head west of here and you run places where the "west coast hipster" is pretty much 95% of the population.  Not all that unique.
Personally, I don't really fit any of the stereotypes I have seen Howard post.. I'm just your average 46 year old technology nerd who doesn't feel there is any kind of "age appropriate" anything in life.  I wear what is comfortable, and I am not trying to fit into anyone's style, stereotype, or genre.  I do own a pair of Carhart shorts, which is the closest thing I have to cargo shorts, but I wear them when it is hot out and I am working on something like a carpentry project.  I don't own flip flops or a hat of any kind, my feet have only seen the sun a few times in the last 3 decades.  If I drink or eat something, it isn't to be ironic, to stand out, or to try something different, it's because I like what I am eating.  i have facial hair but I also shave every day.  I'm overweight but look skinny compared to 90% of Americans.  What other Howardisms can we dispel today?